This is something that the Hardware Report currently supports for the GPU Model chart. There are three buttons: INTEL, NVIDIA, and AMD. Clicking one of them hides the population lines corresponding to that manufacturer.

This can be specified along with other metadata in an ensemble-transposer manifest. I'm not opposed to putting this metadata in the source dataset, but so far all metadata has gone into transposer manifests.
In other words, don't worry about how to format this. If you tell me what the groups are, I can set them up.
This is something that the Hardware Report currently supports for the GPU Model chart. There are three buttons: INTEL, NVIDIA, and AMD. Clicking one of them hides the population lines corresponding to that manufacturer.
This can be specified along with other metadata in an ensemble-transposer manifest. I'm not opposed to putting this metadata in the source dataset, but so far all metadata has gone into transposer manifests.
In other words, don't worry about how to format this. If you tell me what the groups are, I can set them up.